Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: KNVLTNMAYJX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
606-442 A Jellico KY 478J NUSO, LLC 474      
606-442 1 Jellico KY 478J NUSO, LLC 474   2020-10-26   
606-442 4 Jellico KY 478J NUSO, LLC 474   2024-01-01   
606-777 9 Jellico KY 478J NUSO, LLC 474   2024-01-01   
828-822 A Waterville NC 478J NUSO, LLC 474      
828-822 1 Waterville NC 478J NUSO, LLC 474   2020-10-12   
828-822 4 Waterville NC 478J NUSO, LLC 474   2023-12-02   
865-371 A Knoxville TN 478J NUSO, LLC 474      
865-371 1 Knoxville TN 478J NUSO, LLC 474   2020-10-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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